Yttrium and barium in open clusters |
| |
| Authors: | T V Mishenina S A Korotin I A Yegorova V V Kovtukh G Carraro |
| |
| Institution: | 11119. Astronomical Observatory, Odessa National University, Odessa, Ukraine
21119. European Southern Observatory, Santiago de Chile, Chile
|
| |
| Abstract: | Based on the VLT high-resolution spectra for stars of five open clusters: Ruprecht 4, Ruprecht 7, Berkeley 25, Berkeley 73, and Berkeley 75 (G. Carraro et al., 2007) we determined the yttrium and barium abundances using the synthetic-spectrum method. Barium abundance was calculated under a non-LTE approximation. We analyzed the correlation between yttrium and barium abundances and the ages of open clusters and stars of the Galactic thin disk. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
